Full hybrid electric car

ABSTRACT

A full hybrid electric car capable of decreasing an environmental pollution and an operation cost as well as a production cost through an increase in heat efficiency of the engine of a vehicle and a reduction in weight of the vehicle, wherein an AC generator ( 2 ) is driven by a prime mover ( 1 ) to feed an electric power to AC motors ( 12 ) and the vehicle is run by the AC motors ( 12 ) installed on the wheels of the vehicle or supplementary driven by a DC motor ( 3 ) through gears, a steering structure is abolished by the adjustment of the rotational speed of the wheels, the motors of the wheels are controlled by detecting the intention of an operator on a gyrocompass and an accelerometer, or the upper limit values of the rotational speeds of the wheels are set for safety.

TECHNICAL FIELD

The present invention is a new technology that contributes to theimprovement of the safety operation, fuel cost and exhaust reductions ofthe pollution material as for the car, agriculture, and the wheel andthe caterpillar etc. such as the construction engineering worksequipment.

The present invention is a technology which is lost the directionconversion device with the engine such as the flywheel, the clutch, thestarter and the steering wheel, etc. and the differential device forspeed control such as the gear box and differential gears, etc., andachieves all circle drive in the engine easily.

BACKGROUND ART

In a conventional hybrid car, running by electricity was, so to speak,role as the assistance of the engine to the end when it was starting,climbing up the slope, and the condenser had some room. Electricity wasgenerated to achieve power when the car took a brake and the engine hadroom.

The hydrogen-powered car as the dream car of next generation has someproblems such as the difficulty of treatment of hydrogen (itsvolatility), the restriction of law regulation for the high pressuregas, the difficulty of the supply of hydrogen gas. In addition, theenvironmental advantage in case of using hydrogen is obscure judged fromthe total thermal efficiency from manufacturing to power generation, andsome say that manufacturing price of hydrogen fuel cell is not suitableto commercial base.

Further more, the body of the car follows the structure of aconventional car, there was a weak point that the price becomesexpensive since it became a bipolar system and heavy on weight.

Since the rotational speed of the engine changed greatly, a conventionalhybrid car had the weak point that measures for the purification of thecar exhaust become complex.

PROBLEMS TO BE SOLVED BY THE INVENTION

(Promotion of Green Engineering and Measures to Conserve Energy)

The basis of environmental measures such as vehicles is decidedaccording to turning on heat source what percentage used for the finalmomentum. The method with high use efficiency is a trueenvironment-friendly technology. The movement efficiency of vehiclesdepends on whether achieved by how many calories of the heat source inthe amount of the kilo-ton of the weight such as persons and the amountof the carried freight. Therefore, it is an advancedenvironment-friendly vehicle that their weight is light, and the finalthermal efficiency is high by the green engineering.

There is no thing that the load to the environment is high such as theaccident to other vehicles and to persons etc. which are said toaccidents in general. To build the vehicle which doesn't cause anaccident easily is big environmental measures.

However, people don't live by only an economic efficiency. Therefore,the riding comfort and the satisfaction at driving are importantproblems when the vehicles are planned. In the safety plan, it isnecessary to equip the mechanically judge device whether the driver'sintention agrees with the geography condition, the driving is theoperations below the safety standard when the vehicles are planned. Whenit deviate from the safety standard, the device that compulsorilyadjusted to the safety-plan is necessary. When these problems aresolved, the riding comfort and the customer satisfaction are improved.

(Concrete Strategy)

Stably driving the engine by the most efficient rotational speed becomesan easy device whose cost is the cheapest and weight is the lightest forthe best purification of the vehicle exhaust. Therefore, doing adetailed output adjustment of vehicles by an electric method can makethe cost cheap and the device light.

It is efficient that a detailed output adjustment of the motor istransformed by alternating current. However, alternating current can notbe stored. Therefore, it is suitable to separate the electrical systemin two systems (the A.C. system and the D.C. system). This method hasadvantage in weight and the cost, and the technology for this method hasbeen widely used each for A.C. system and D.C. system.

DISCLOSING OF THE INVENTION

The motor uses the power by the A.C. dynamo and rotates stably, which iscontributed to the decrease in fuel cost and a decrease in the exhaustof the pollution material. The engine gains the assisted output by theD.C. motor connected with A.C. generator by gears or belts, using thedifference of the quantity of electricity by the motor and ofelectricity assumed to be necessary for the running. When theelectricity is generated more than necessary amount, the electricity isstored battery after transforming the electricity generated by the D.C.motor using the power of A.C. generator to the standard voltage.

Rotational speed of each wheel is controlled by the power supplycontroller which control the motor and by the A.C. motor connected witheach wheel by the free light gear-change (at the following as thegear-change). (It is requested as Japanese patent Application No.2001-135702 by investor Toshihito Fukumoto.) The gear-change gains thebiggest result by decreasing the output of the motor and adjusting toobtain the best driving amount, and contributes to a stable drivingconventionally only by the difference of the rotational speed of thewheel. The present invention does not depend on the driving stabilizerssuch as the steering wheel, a manual gear gear-change, a hydraulictorque converter, the no steps type gear-change through a metallic beltand differential gear, etc.

The motors carried in each wheel functions generate the best drivingpower, work as A.C. generator during slowdown, and controlled byconcentrated controlling device to get the best amount of speed changeand the maximum amount of power generation by function of gear-changeconnected with motor.

The electricity that is collected to the A.C. dynamo, generated by D.C.generator connected directly to the A.C. generator is saved in variousstorage batteries, and recycled as the motive power source of motor thatmakes control system that applies device used as present hybrid systemassist and drive dynamo.

The gyrocompass set up in the body detects the difference of thetraveling direction at present and the steering wheel corner that thedriver intend, makes the traveling direction change the most stably bychanging the rotational speed of each wheel. This control is atechnology controlled with a mathematical arithmetic unit.

The accelerometer set up in the body detects the difference between thepresent speed of the vehicle and the speed that the driver intend, amathematical arithmetic unit calculates the amount of electric supply toeach wheel, and the amount of electric supply is controlled by thecontrol system.

When the numerical value detected by the gyrocompass and theaccelerometer set up in the body approaches an overthrow angle in thedesign and a dangerous value of a horizontal rotation in a horizontalangle of the body or the acceleration to horizontal direction, or thevalue that the tire grips the road falls below the safety value in thedesign by situation of the road, the vehicle automatically lowers thespeed.

BEST MODE FOR CARRYING OUT THE INVENTION

To describe the present invention minutely, attached drawings arefollowed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows the method which supplies the amount of electricity that isgenerated by the A.C. generator (driven directly by the engine) andcalculated by arithmetic unit to each wheel needed by drivingindividually in each wheel through a controller, a power supplystabilization device, and a positive reverse-controller. The A.C.generator has D.C. motor, and charges the storage battery by driving asthe D.C. generator when the surplus the controller calculated in theengine or assisted driving source is generated. The A.C. generatorbecomes the driving source and rotates the D.C. motor when each wheelstarts generating electricity as a brake or until the rotational speedhas fallen down to the sufficient speed.

FIG. 2 shows the situation in which the A.C. motor is set to anindependent axle by the gear-change respectively. The motor acts as adynamo during braking, and generates the A.C. electricity by the brakepower. Therefore, the controller to make the voltage and phasesympathize is needed, and each motor equips phase sympathizer. And itshows the installation concept of the gear-change, the motor, theelectrical potential cycle sympathizer, and the voltage tune controller.

FIG. 3 shows the concept of the wheel to adjust the rotational speed ofeach wheel, to detect the running situation of the vehicle by theequipped gyrocompass and accelerometer, to detect the intention of thedriver and the difference of the steering wheel corner and theaccelerator corner caused by the direction and speed of the vehicle, andto calculate the momentum with a mathematical arithmetic unit.

FIG. 4 shows the controller's concept chart. The controller is connectedwith the gyrocompass, the accelerator and the power supply device by amathematical unit, and controls the amount of power supply and the powergeneration by the motor connected with an individual wheel. It alsocalculates the need of electricity for each wheel and the amount ofpower generation. The result is transmitted to the controller set up ineach wheel and the wheel is controlled.

FIG. 5 shows the easy explanation of the present invention.

EASY EXPLANATION OF REFERENCE LETTERS

1 Engine

2 A.C. motor

3 D.C. motor

4 Diving gear for D.C. motor

5 Output adjustment gear for A.C. motor

6 Axle adjustment controller

7 Axle output adjustment wire harness

8 Storage battery

9 Tire, desk wheel and brake equipment

10 Suspension

11 Gear-change

12 A.C. motor

13 Electric power I/O wire harness

14 Gyrocompass

15 Accelerometer

16 Detection device for axle direction, Detection device for thedifference of the steering corner and the accelerator corner

17 Wire harness

18 Motor with axle, the gear-change control controller

19 Wire harness for control

20 Voltage stabilization device and input-output control unit forstorage battery

21 Arithmetic unit

22 Arithmetic unit of front wheel control

23 Arithmetic unit of rear wheel control

24 Electric power input-output control unit

25 Electric aspect title stabilization device

INDUSTRIAL APPLICABILITY

When the pattern is set, owing to rotate the engine by the rotationalspeed in a constant pattern, it can be set by the situation of theoccurrence of the vehicle exhaust with few pollution materials and thebest performance of the engine on the fuel expenses. Moreover, thedriving cost can be decreased because of the stable driving and the bestfuel expenses.

It is possible to reduce the driving device of conventional vehicles, sothe weight of the vehicles can be reduced, the response by theelectrical control can be improved, and the driving operation can beoperated as the driver intends. These facts contribute to the inclusionof the safety device to the vehicles.

The time loss decreases compared with mechanical correspondence tocorrespond to the change in the vehicle output electrically. Thisimproves safety, too.

1. The structure that drives the A.C. dynamo with the motor using thealcohol etc. generated from oil, natural gases, and the plants, anddrives the vehicle by A.C. motor by gear-exchange installed in eachwheel.
 2. The control method by the mathematical operation machine toimprove the fuel expenses by driving at the best rotational speed andreduce the pollution material, and the structure to drive the motor bythe rotational speed of several kinds of patterns with the combustorefficiency and drive the vehicle by getting the A.C. by the A.C.generator and cope with the change of power consumption by the change ofdetailed driving situation by driving auxiliary the D.C. motor throughthe gear to the A.C. generator.
 3. The structure that controls thedriving direction by adjusting rotational speed of wheel by combininggear-change individually installed in each wheel and A.C. motor and thesteering wheel structure of the front wheel is abolished.
 4. Thestructure that achieves the running situation which the driver intendscontrolled by the mathematical arithmetic unit by controlling the supplyof electricity to the motor in each wheel and gear-change, owing tocontrol the rotational speed of each wheel and regard the differencebetween the steering angle and the accelerator angle which are intendedby the driver and the direction of the body detected by the gyrocompassinstalled in the body and the change of the speed detected by theaccelerometer as the difference of momentum.
 5. The device that detectsthe rotational speed of each wheel and keeps the safety in runningvehicle by suppress the rotational speed below the safety value whenrotational speed exceeds it to the safety value in the vehicle design.